Detective Matt English said the group set out Saturday on snowshoes and called 911 on Sunday to report they were lost. The three were identified as Mark Kelsey, Margarita Estrada, and Debra Shindler.

The sheriff’s office said they had food and sleeping bags. Kelsey was reported to have ‘‘extensive training and outdoor experience,’’ it said.

The group became lost about seven miles from a camp site and were able to call 911 by cellphone. Authorities were not able to get other calls through to the three but determined their position by tracing the cellphone.

Rescuers searched areas northwest of the snow park Sunday before suspending operations because to poor weather and darkness. On Monday morning, about 20 searchers on snowmobiles skis resumed the search and found the group about 11 a.m., English said.